--- libmalloc/libmalloc-792.41.1/tests/mte_testing.h
+++ /dev/null
@@ -1,115 +0,0 @@
-#include <../src/platform.h>
-
-#if defined(__arm64__) && defined(__LP64__) && CONFIG_MTE && !MALLOC_TARGET_EXCLAVES
-#define MALLOC_MTE_TESTING_SUPPORTED 1
-#else
-#define MALLOC_MTE_TESTING_SUPPORTED 0
-#endif
-
-#if MALLOC_MTE_TESTING_SUPPORTED
-
-#include <os/base.h>
-#include <stddef.h>
-#include <_simple.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <sys/sysctl.h>
-#include <errno.h>
-#include <darwintest.h>
-
-// Given a pointer, strip the tag from bits 56-59 and return the result
-#define PTR_STRIP_TAG(p) \
-	((__typeof__(p))(((uintptr_t)(p)) & ~((uintptr_t)0xf << 56)))
-// Given a pointer, return the logical tag stored in bits 56-59
-#define PTR_EXTRACT_TAG(p) ((unsigned int)((((uintptr_t)(p)) >> 56) & 0xf))
-// Return whether a pointer has a non-canonical tag in bits 56-59
-#define PTR_IS_TAGGED(p) (PTR_EXTRACT_TAG(p) != 0)
-// Given a pointer p, return a pointer with bits 56-59 set to t
-#define PTR_SET_TAG(p, t) (__typeof__(p))(((uintptr_t)t << 56) | ((uintptr_t)p))
-
-OS_ENUM(sec_transition_config, uint8_t,
-	SEC_TRANSITION_NONE,
-	SEC_TRANSITION_EMULATED,
-	SEC_TRANSITION_HARDWARE,
-);
-
-static inline const char **
-get_apple_array(void)
-{
-	// The kernel sets up the stack with the following memory layout
-	//   ┌────────┐
-	//   │  argc  │
-	//   ├────────┤
-	//   │  argv  │
-	//   ├────────┤
-	//   │  envp  │
-	//   ├────────┤
-	//   │  Apple │
-	//   └────────┘
-	// Each array of pointers is terminated by a NULL value; thus, in theory we
-	// should be able to find the Apple array right after the NULL pointer at
-	// the end of envp.
-	// However, libsanitizers has its own unsetenv implementation which it uses
-	// at initialization time to consume the environment variables it uses. This
-	// changes the layout by moving all environment variables "down", and thus
-	// leaving more than a single NULL pointer between envp and the Apple array.
-	// This applies to all variables used by libsanitizers, so after getting to
-	// the end of envp, we move forward until we find a non-NULL pointer.
-	extern char **environ;
-	char **p = environ;
-	while (*p != NULL) {
-		p++;
-	}
-	p++;
-	while (*p == NULL) {
-		p++;
-	}
-	return (const char **)p;
-}
-
-static int
-process_is_translated(void)
-{
-	int ret = 0;
-	size_t size = sizeof(ret);
-	if (sysctlbyname("sysctl.proc_translated", &ret, &size, NULL, 0) == -1) {
-		if (errno == ENOENT) {
-			return 0;
-		}
-		return -1;
-	}
-	return ret;
-}
-
-static inline sec_transition_config_t
-get_sec_transition_config(void)
-{
-	const char **apple = get_apple_array();
-	const char *flag = _simple_getenv(apple, "has_sec_transition");
-	if (flag) {
-		uint64_t value = (uint64_t)strtoull(flag, NULL, 0);
-		if (value == 1) {
-			if (process_is_translated() == 1) {
-				return SEC_TRANSITION_EMULATED;
-			}
-			return SEC_TRANSITION_HARDWARE;
-		}
-	}
-	return SEC_TRANSITION_NONE;
-}
-
-#define T_SKIP_REQUIRES_SEC_TRANSITION() \
-	do { \
-		if (get_sec_transition_config() == SEC_TRANSITION_NONE) { \
-			T_SKIP("Requires has_sec_transition=1"); \
-		} \
-	} while (0)
-
-#define T_SKIP_REQUIRES_SEC_TRANSITION_HARDWARE() \
-	do { \
-		if (get_sec_transition_config() != SEC_TRANSITION_HARDWARE) { \
-			T_SKIP("Requires has_sec_transition=1 on supported hardware"); \
-		} \
-	} while (0)
-
-#endif // MALLOC_MTE_TESTING_SUPPORTED